Armature Segment Joint Layout for Easier Insertion and Stronger Bonding
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Solution Overview
Problem
The existing armature designs face a shortage of joint area due to chamfered surfaces, which can lead to reduced joint efficiency and increased insertion difficulties for conductor segments.
Innovation Solution
The armature design incorporates overlapping facing surfaces with chamfered edges on both circumferential sides of the conductor segments, allowing for a larger joint area and improved insertion properties while minimizing the reduction in surface area, even with chamfered parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If chamfered parts are provided on both circumferential sides of the end part of the linear part, then the insertion ease is improved, but the joint area is reduced
Solution Approach 1:
The patent changes the orientation of the facing surface from being perpendicular to the axial direction (conventional design) to being parallel to the axial direction. This dimensional reorientation allows the facing surface to extend axially while the chamfered parts are provided on the radial edges, enabling both large joint area and easy insertion simultaneously
2Strength
If the facing surface area is increased to improve joint strength, then the joint strength is improved, but the insertion ease is reduced
Solution Approach 1:
The patent applies different surface characteristics to different locations: the main facing surface has a large area parallel to the axial direction for strong joint bonding, while the radial edges have chamfered parts for easy insertion. This local differentiation of surface properties resolves the contradiction between joint strength and insertion ease
Data Source
AI summary
In this armature, facing surfaces which are portions where a first segment conductor and a second segment conductor are joined together are disposed so as to overlap each other as viewed in a radial direction, and an end part of at least one of the first segment conductor and the second segment conductor is provided with chamfered parts at edge parts on both circumferential sides of the end part.